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Finding the Fourth Proportional to 178,574.88, 267,579.44 and 145,133.60

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Solution

The fourth proportional to 178,574.88, 267,579.44 and 145,133.60 is: 217,470.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,574.88 : 267,579.44 = 145,133.60 : x
  2. Step 2: Convert to fraction form
    178,574.88/267,579.44 = 145,133.60/x
  3. Step 3: Cross multiply
    178,574.88x = 267,579.44 × 145,133.60
  4. Step 4: Simplify right side
    178,574.88x = 38,834,767,413.18
  5. Step 5: Solve for x
    x = 38,834,767,413.18/178,574.88
  6. Step 6: Final answer
    x = 217,470.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.